<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/vue.js"></script>
</head>
<body>
    <div id="app">
        <p>中国古典十大名曲为：{{array|join}}</p>
        <p>中国古典十大名曲为：{{array|join('、')}}</p>
        <p>中国古典十大名曲为：{{array|join('《','》')}}</p>
    </div>
</body>
<script>
    const vm=new Vue({
    el:'#app',
    data:{
        array:['高山流水','梅花三弄','夕阳箫鼓','汉宫秋月','阳春白雪','渔樵问答','胡笳十八拍','广陵散','平沙落雁','十面埋伏']
    },
    filters:{
        join:function(val,...marks){
            var length=marks.length
            if(length==2){
                return val.map((v)=>{
                    return marks[0]+v+marks[1]
                }).join('')
            }else if(length==1){
                return val.join(marks[0])
            }else{
                return val.join(',')
            }
        }
    }
    })
</script>
</html>